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Jan Van Herle

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Publications associées (225)

Taking Advantage of the Vastly Underused European Biogas Potential: Break-Even Conditions for a Fuel Cell and an Engine as Biogas Converters

Jan Van Herle, Samuel Joseph Christian Majerus, Dirk Lauinger

2018

Optimal design of solid-oxide electrolyzer based power-to-methane systems: A comprehensive comparison between steam electrolysis and co-electrolysis

Stefan Diethelm, Jan Van Herle, François Maréchal, Maria del Mar Perez Fortes, Hossein Madi, Ligang Wang

Power-to-methane technologies have been regarded as a promising alternative to offer small or large-scale, long-timescale (daily/weekly/seasonal) energy storage as well as the opportunity of utilizing CO2. The performance of the core component, the electro ...

2018

Cost Requirements for a Small-Scale SOFC Fed From Agricultural-Derived Biogas

Jan Van Herle, Samuel Joseph Christian Majerus, Dirk Lauinger

In this work, the use of fuel cells for valorizing agricultural-derived biogas in Switzerland is studied. The Swiss agricultural case is characterized by farms with small numbers of animals (20 cows) and high feed-in tariffs (FIT) for biogas-derived electr ...

Asme2017

Production and Reliability Oriented SOFC Cell and Stack Design

Jan Van Herle, Zacharie Wuillemin, Arata Nakajo, Fabio Greco, Xin Wang

This paper presents an innovative development methodology for a production and reliability oriented SOFC cell and stack design aiming at improving the stacks robustness, manufacturability, efficiency and cost. Multi-physics models allowed a probabilistic a ...

2017

The Effects of Component Tolerances on the Thermo-Mechanical Reliability of SOFC Stacks

Jan Van Herle, Zacharie Wuillemin, Arata Nakajo, Fabio Greco

The reliability of solid oxide fuel cell (SOFC) systems is closing the gap to meet the requirements for market implementation. Finite-element (FE) stack models, typically used for stack reliability analyses, commonly consider idealized components. In reali ...

2017

Evolution of 3-D Transport Pathways and Triple-Phase Boundaries in the Ni-YSZ Hydrogen Electrode upon Fuel Cell or Electrolysis Cell Operation

Jan Van Herle, Marco Cantoni, Arata Nakajo, Pierre Burdet

The degradation of the Ni-YSZ electrode was investigated after SOFC or SOEC operation for up to 4,700 h and 10,700 h, respectively. 3-D FIB-SEM serial sectioning combined with 3-D EDS elemental mapping allowed the measurement of structural, material and el ...

2017

In-Situ Observation of Co-Ce Coated Metallic Interconnect Oxidation Combined with High-Resolution Post Exposure Analysis

Jan Van Herle, Cécile Hébert, Stéphane François Jean Poitel

Oxidation of Sanergy SSHT steel with Ce-Co coating, used as interconnect material, was observed in-situ in a modified environmental scanning electron microscope (ESEM) at nominal temperature between 800°C and 900°C under 33Pa of oxygen, for different durat ...

2017

Strontium Migration at the GDC-YSZ Interface of Solid Oxide Cells in SOFC and SOEC Modes

Jan Van Herle, Marco Cantoni, Arata Nakajo, Pierre Burdet, Emad Oveisi, Giorgio Rinaldi

Strontium migration from the oxygen electrode to the interface between the electrolyte and interlayer was investigated in solid oxide cells in fuel cell (SOFC) and electrolysis (SOEC) modes. Four samples were imaged by focused ion beam scanning electron mi ...

2017

Dealing with fuel contaminants in biogas-fed solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC) plants: Degradation of catalytic and electro-catalytic active surfaces and related gas purification methods

Jan Van Herle, Hossein Madi, Davide Papurello

Fuel cell and hydrogen technologies are re-gaining momentum in a number of sectors including industrial, tertiary and residential ones. Integrated biogas fuel cell plants in wastewater treatment plants and other bioenergy recovery plants are nowadays on th ...

2017

Modeling and Designing of a Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Stefan Diethelm, Jürg Alexander Schiffmann, Jan Van Herle, Zacharie Wuillemin, Patrick Hubert Wagner

To improve the industry benchmark of solid oxide fuel cell (SOFC) systems, we consider anode off-gas recirculation (AOR) using a small-scale fan. Evolutionary algorithms compare different system design alternatives with hot or cold recirculation. The syste ...

2017

Post-test Analysis on a Solid Oxide Cell Stack Operated for 10,700 Hours in Steam Electrolysis Mode

Stefan Diethelm, Jan Van Herle, Pierre Burdet, Emad Oveisi, Giorgio Rinaldi

A solid oxide short stack composed of 6 Ni-YSZ supported cells, YSZ electrolyte and GDC-LSC oxygen electrode has been tested for 10,700 hours in steam electrolysis. Initial degradation was followed by a global stabilization of the performance after lowerin ...

2017

Combining in-Situ SEM with High Sensitivity Analytical TEM for Understanding the Degradation of Metallic Interconnects in SOFC

Jan Van Herle, Cécile Hébert, Stéphane François Jean Poitel

2017

Triode Solid Oxide Fuel Cell Operation Under Sulfur-Poisoning Conditions

Stefan Diethelm, Jan Van Herle, Priscilla Caliandro

The triode solid oxide fuel cell (SOFC) is a three electrodes configuration. The third electrode, so-called auxiliary, is connected in a way to run in electrolysis mode, while cathode and anode operate in normal fuel cell mode. This mixed operation allows ...

Wiley-V C H Verlag Gmbh2017

Integrated System Design of a Small-scale Power-to-Methane Demonstrator

Stefan Diethelm, Jan Van Herle, François Maréchal, Alberto Mian, Ligang Wang

Power-to-methane technology has been considered as a promising alternative to cope with seasonal storage of renewable energy and the utilization of CO2 captured from various sources, due to the existing infrastructure for massive methane storage and distri ...

2017

Special Issue on Modeling and Experimental Validation of Fuel Cells, Batteries, and Electrolysers

Jan Van Herle

2017

A TEM study of Ni interfaces formed during activation of SOFC anodes in H 2 : Influence of grain boundary symmetry and segregation of impurities

Aïcha Hessler-Wyser, Jan Van Herle, Quentin Thomas Jeangros, Cécile Hébert

The electrochemical properties of a solid oxide fuel cell depend on many parameters, including – on the anode side – the connectivity of the Ni network and the segregation of impurities at active points. In this work, advanced scanning transmission electro ...

2016

Organic-sulfur poisoning of solid oxide fuel cell operated on bio-syngas

Stefan Diethelm, Jan Van Herle, Christian Ludwig, Hossein Madi

This study experimentally analyzes the performance and degradation issues of an anode supported (AS) Ni-YSZ solid oxide fuel cell exposed to thiophene (C4H4S). The impact of this organic sulfur compound on the performance of SOFC Ni-YSZ anodes is reported ...

Elsevier2016

Energy-filtered environmental transmission electron microscopy for the assessment of solid-gas reactions at elevated temperature: NiO/YSZ-H-2 as a case study

Aïcha Hessler-Wyser, Jan Van Herle, Quentin Thomas Jeangros, Cécile Hébert

A novel approach, which is based on the analysis of sequences of images recorded using energy-filtered transmission electron microscopy and can be used to assess the reaction of a solid with a gas at elevated temperature, is illustrated for the reduction o ...

Elsevier Science Bv2016

Solid oxide fuel cell anode degradation by the effect of hydrogen chloride in stack and single cell environments

Stefan Diethelm, Jan Van Herle, Christian Ludwig, Hossein Madi, Davide Papurello

The poisoning effect by hydrogen chloride (HCl) on state-of-the-art Ni anode-supported solid oxide fuel cells (SOFCs) at 750 degrees C is evaluated in either hydrogen or syngas fuel. Experiments are performed on single cells and short stacks and HCl concen ...

2016

A linear programming approach to the optimization of residential energy systems

Jan Van Herle, Dirk Lauinger, Priscilla Caliandro, Daniel Kuhn

A decision-support tool (ORES) in the form of a linear program is developed to determine the optimal investment and operating decisions for residential energy systems. It shows how energy conversion units such as a cogeneration fuel cell, a heat pump, a bo ...

2016

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